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use rustls-webpki instead of linkerd/webpki #2465

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merged 5 commits into from
Sep 11, 2023
Merged

use rustls-webpki instead of linkerd/webpki #2465

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8558735
use `rustls-webpki` instead of `linkerd/webpki`
hawkw Sep 1, 2023
df23b6a
update to rustls-webpki v0.101.5
hawkw Sep 8, 2023
bf45d96
pin git dep to revision
hawkw Sep 11, 2023
2f1f99c
update deny.toml to allow git dep
hawkw Sep 11, 2023
d9af088
remove debugging printlns --- my bad!
hawkw Sep 11, 2023
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16 changes: 13 additions & 3 deletions Cargo.lock
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Original file line number Diff line number Diff line change
Expand Up @@ -1408,11 +1408,11 @@ dependencies = [
"linkerd-tls-test-util",
"ring",
"rustls-pemfile",
"rustls-webpki",
"thiserror",
"tokio",
"tokio-rustls",
"tracing",
"webpki",
]

[[package]]
Expand Down Expand Up @@ -2462,6 +2462,15 @@ dependencies = [
"base64",
]

[[package]]
name = "rustls-webpki"
version = "0.101.5"
source = "git+https://github.com/cpu/webpki?rev=702d57f444e3f7d743277524e832a2363290ec4d#702d57f444e3f7d743277524e832a2363290ec4d"
dependencies = [
"ring",
"untrusted",
]

[[package]]
name = "rustversion"
version = "1.0.11"
Expand Down Expand Up @@ -3149,8 +3158,9 @@ dependencies = [

[[package]]
name = "webpki"
version = "0.22.0"
source = "git+https://github.com/linkerd/webpki?branch=cert-dns-names-0.22#a26def03ec88d3b69542ccd2f0073369ecedc4f9"
version = "0.22.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f0e74f82d49d545ad128049b7e88f6576df2da6b02e9ce565c6f533be576957e"
dependencies = [
"ring",
"untrusted",
Expand Down
3 changes: 2 additions & 1 deletion Cargo.toml
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Expand Up @@ -82,4 +82,5 @@ debug = false
lto = true

[patch.crates-io]
webpki = { git = "https://github.com/linkerd/webpki", branch = "cert-dns-names-0.22" }
# remove this patch when https://github.com/rustls/webpki/pull/170 is published!
rustls-webpki = { git = "https://github.com/cpu/webpki", rev = "702d57f444e3f7d743277524e832a2363290ec4d" }
7 changes: 3 additions & 4 deletions deny.toml
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Expand Up @@ -72,8 +72,7 @@ skip-tree = [
unknown-registry = "deny"
unknown-git = "deny"
allow-registry = ["https://github.com/rust-lang/crates.io-index"]

[sources.allow-org]
github = [
"linkerd",
allow-git = [
# remove this when https://github.com/rustls/webpki/pull/170 is published!
"https://github.com/cpu/webpki",
]
2 changes: 1 addition & 1 deletion linkerd/meshtls/rustls/Cargo.toml
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Expand Up @@ -19,11 +19,11 @@ linkerd-tls = { path = "../../tls" }
linkerd-tls-test-util = { path = "../../tls/test-util", optional = true }
ring = { version = "0.16", features = ["std"] }
rustls-pemfile = "1.0"
rustls-webpki = { version = "0.101.5", features = [ "std"] }
thiserror = "1"
tokio = { version = "1", features = ["macros", "rt", "sync"] }
tokio-rustls = { version = "0.23", features = ["dangerous_configuration"] }
tracing = "0.1"
webpki = "0.22"

[dev-dependencies]
linkerd-tls-test-util = { path = "../../tls/test-util" }
10 changes: 6 additions & 4 deletions linkerd/meshtls/rustls/src/creds/store.rs
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Expand Up @@ -239,9 +239,11 @@ impl rustls::server::ResolvesServerCert for CertResolver {
hello: rustls::server::ClientHello<'_>,
) -> Option<Arc<rustls::sign::CertifiedKey>> {
let server_name = match hello.server_name() {
Some(name) => webpki::DnsNameRef::try_from_ascii_str(name)
.expect("server name must be a valid server name"),

Some(name) => {
let name = webpki::DnsNameRef::try_from_ascii_str(name)
.expect("server name must be a valid server name");
webpki::SubjectNameRef::DnsName(name)
}
None => {
debug!("no SNI -> no certificate");
return None;
Expand All @@ -251,7 +253,7 @@ impl rustls::server::ResolvesServerCert for CertResolver {
// Verify that our certificate is valid for the given SNI name.
let c = self.0.cert.first()?;
if let Err(error) = webpki::EndEntityCert::try_from(c.as_ref())
.and_then(|c| c.verify_is_valid_for_dns_name(server_name))
.and_then(|c| c.verify_is_valid_for_subject_name(server_name))
{
debug!(%error, "Local certificate is not valid for SNI");
return None;
Expand Down
17 changes: 6 additions & 11 deletions linkerd/meshtls/rustls/src/server.rs
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Expand Up @@ -130,18 +130,13 @@ fn client_identity<I>(tls: &tokio_rustls::server::TlsStream<I>) -> Option<Client
let certs = session.peer_certificates()?;
let c = certs.first().map(Certificate::as_ref)?;
let end_cert = webpki::EndEntityCert::try_from(c).ok()?;
let dns_names = end_cert.dns_names().ok()?;

match dns_names.first()? {
webpki::GeneralDnsNameRef::DnsName(n) => {
let s: &str = (*n).into();
s.parse().ok().map(ClientId)
}
webpki::GeneralDnsNameRef::Wildcard(_) => {
// Wildcards can perhaps be handled in a future path...
None
}
let name: &str = end_cert.dns_names().ok()?.next().map(Into::into)?;
if name == "*" {
// Wildcards can perhaps be handled in a future path...
return None;
}

name.parse().ok().map(ClientId)
}

// === impl ServerIo ===
Expand Down